Answers created by Dave E.

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• Is american/American a proper noun, and why?
  
• Why is perfect tense called "perfect"?
  
• When two main clauses are joined together without the use of a coordinating conjunction, should the clauses be separated by a semicolon, a comma, a colon or a subordinate clause?
  
• When do we use the third tense in English with specific verbs in present perfect tense, for example: I have finished, He has worked, We have gone?